Fireplace heat exchange tubing device



FIG. 1 is a perspective view of a fireplace heat exchange tubing device showing my new design;

FIG. 2 is a plan view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is an end elevational view thereof; and

FIG. 5 is an elevational view of the opposite end thereof.

The broken line disclosure of an air inlet fan and grille and an outlet grille in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a fireplace heat exchange tubing device, substantially as shown. 